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Extract from the Register of European Patents

EP About this file: EP4207346

EP4207346 - CONDUCTIVE MATERIAL DISPERSION LIQUID FOR ELECTROCHEMICAL ELEMENT, SLURRY FOR ELECTROCHEMICAL ELEMENT ELECTRODE, ELECTROCHEMICAL ELEMENT ELECTRODE, AND ELECTROCHEMICAL ELEMENT [Right-click to bookmark this link]
StatusRequest for examination was made
Status updated on  02.06.2023
Database last updated on 24.03.2026
FormerThe international publication has been made
Status updated on  05.03.2022
Most recent event   Tooltip12.11.2025The date on which the examining division becomes responsible, has been established 
12.11.2025Amendment by applicant 
Applicant(s)For all designated states
Zeon Corporation
6-2, Marunouchi, 1-chome
Chiyoda-ku
Tokyo 100-8246 / JP
[2023/27]
Inventor(s)01 / ASAI, Kazuki
Tokyo 100-8246 / JP
 [2023/27]
Representative(s)Maiwald GmbH
Elisenhof
Elisenstraße 3
80335 München / DE
[2023/27]
Application number, filing date21861641.525.08.2021
[2023/27]
WO2021JP31240
Priority number, dateJP2020014630831.08.2020         Original published format: JP 2020146308
[2023/27]
Filing languageJA
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2022045218
Date:03.03.2022
Language:JA
[2022/09]
Type: A1 Application with search report 
No.:EP4207346
Date:05.07.2023
Language:EN
[2023/27]
Search report(s)International search report - published on:JP03.03.2022
(Supplementary) European search report - dispatched on:EP07.05.2025
ClassificationIPC:H01M4/13, H01M4/139, H01M4/62, H01G11/06, H01G11/36, H01M4/131, H01M4/1391, H01G11/38, H01G11/86, H01M10/052, H01M10/0525, H01M4/04
[2025/23]
CPC:
H01G11/06 (EP,KR); H01M4/62 (KR); C08K3/041 (US);
C08L33/20 (US); H01G11/36 (EP,KR); H01G11/38 (EP);
H01M10/052 (EP); H01M10/0525 (EP); H01M4/0404 (EP);
H01M4/0416 (US); H01M4/131 (EP); H01M4/139 (KR);
H01M4/1391 (EP); H01M4/622 (EP); H01M4/625 (EP,US);
C08L2201/54 (US); H01G11/86 (EP); Y02E60/10 (EP) (-)
Former IPC [2023/27]H01M4/13, H01M4/139, H01M4/62, H01G11/06, H01G11/36
Designated contracting statesAL,   AT,   BE,   BG,   CH,   CY,   CZ,   DE,   DK,   EE,   ES,   FI,   FR,   GB,   GR,   HR,   HU,   IE,   IS,   IT,   LI,   LT,   LU,   LV,   MC,   MK,   MT,   NL,   NO,   PL,   PT,   RO,   RS,   SE,   SI,   SK,   SM,   TR [2023/27]
TitleGerman:DISPERSIONSFLÜSSIGKEIT AUS LEITFÄHIGEM MATERIAL FÜR ELEKTROCHEMISCHES ELEMENT, AUFSCHLÄMMUNG FÜR ELEKTROCHEMISCHE ELEMENTELEKTRODE, ELEKTROCHEMISCHE ELEMENTELEKTRODE UND ELEKTROCHEMISCHES ELEMENT[2023/27]
English:CONDUCTIVE MATERIAL DISPERSION LIQUID FOR ELECTROCHEMICAL ELEMENT, SLURRY FOR ELECTROCHEMICAL ELEMENT ELECTRODE, ELECTROCHEMICAL ELEMENT ELECTRODE, AND ELECTROCHEMICAL ELEMENT[2023/27]
French:LIQUIDE DE DISPERSION DE MATÉRIAU CONDUCTEUR POUR ÉLÉMENT ÉLECTROCHIMIQUE, SUSPENSION POUR ÉLECTRODE D'ÉLÉMENT ÉLECTROCHIMIQUE, ÉLECTRODE D'ÉLÉMENT ÉLECTROCHIMIQUE ET ÉLÉMENT ÉLECTROCHIMIQUE[2023/27]
Entry into regional phase30.12.2022Translation filed 
30.12.2022National basic fee paid 
30.12.2022Search fee paid 
30.12.2022Designation fee(s) paid 
30.12.2022Examination fee paid 
Examination procedure30.12.2022Examination requested  [2023/27]
11.11.2025Amendment by applicant (claims and/or description)
11.11.2025Date on which the examining division has become responsible
Fees paidRenewal fee
29.08.2023Renewal fee patent year 03
04.07.2024Renewal fee patent year 04
03.07.2025Renewal fee patent year 05
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Responsibility for the accuracy, completeness or quality of the data displayed under the link provided lies entirely with the Unified Patent Court.
Documents cited:Search[X] US2019051887  (YOO HOUNGSIK et al.) [X] 1-5 * paragraphs [0009] - [0021] *
 [X] WO2017164703  (LG CHEMICAL LTD et al.) [X] 1-5 * claims 1-20 *
International search[A] JP2017206412  (TODAKOGYO CORP et al.) [A] 1-5
 [A] JP2020019705  (LG CHEMICAL LTD et al.) [A] 1-5
 [A] JP2016021390  (NIPPON ZEON CO et al.) [A] 1-5
 [A] WO2012060454  (NAT INST OF ADVANCED IND SCIEN et al.) [A] 1-5
 [A] WO2018043487  (TORAY INDUSTRIES et al.) [A] 1-5
 [A] JP2015020939  (TORAY INDUSTRIES et al.) [A] 1-5
 [A] JP2009242117  (TORAY INDUSTRIES et al.) [A] 1-5
by applicantJP2012204303
The EPO accepts no responsibility for the accuracy of data originating from other authorities; in particular, it does not guarantee that it is complete, up to date or fit for specific purposes.